Closed Loop Disable in $6E

[Marteney, Steven J.]

Thanks for clarifying.  Didn't even pick up that 1.8 = 9/5, standard degC
<=> degF conversion factor.  Figured that was what the 32 was there for.

-----Original Message-----
From: Michael Davis [mailto:davis at mail.eecis.udel.edu]
Sent: Tuesday, January 30, 2001 4:08 PM
To: gmecm at diy-efi.org
Subject: Re: Closed Loop Disable in $6E 



degC = (HEX_VALUE * 0.75 - 40)

$6B => ~40 degC

degF = degC * 1.8 + 32

$6B => ~112 degF

mike

In message
<8CFC65F1B157D411B42A009027E301B5CBBD26 at xlvmail.xlvision.com>,"Marte
ney, Steven J." writes:
>Simply out of curiousity (I'm going to burn a chip and try it for the
>halibut) the value at $445 in $6E is $6B.  If I use Craig Moates' Qbasic
>code for 165 ALDL comm it equated to 104.45 deg (assume F) using the
>following formula:
>
>degF = (HEX_VALUE * .75 - 40) * 1.8 + 32
>
>If I assume it simply correlates to direct temp then it is either 107degF
or
>107degC.  Any idea which way is right?  Just curious mind you.
>
>Thanks for the help!!!  I got discouraged when I thought I might not be
able
>to tune this car in open loop to see if I could get the mileage up before
>taking other more drastic measures.
>
>Steve

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